Sienna Guillory, Jamie Chung Join NBC's J.J. Abrams-Alfonso Cuaron's 'Believe' (Exclusive)

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Sienna Guillory and Jamie Chung

NBC's Believe is rounding out its cast.

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Resident Evil star Sienna Guillory, Once Upon a Time's Jamie Chung and newcomer Johnny Sequoyah have joined the cast of the network's drama pilot Believe, The Hollywood Reporter has learned exclusively.

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The drama revolves around Bo, a young girl in possession of great powers -- which will come into their own in seven years -- and the man who is sprung from prison (Savages' Jake McLaughlin) to protect her from those trying to hunt her down.

Sequoyah will play Bo. Her credits include roles in Ass Backwards and the upcoming films Plastic Jesus, Wind Walkers and An Unkindness of Ravens. She's repped by Untitled Entertainment and Felker Toczek.

Chung, who has played Mulan this season on ABC's Once, will portray Channing, a strong, practical and smart woman who works for Winter (The Chicago Code's Delroy Lindo) and assists Tate (McLaughlin) when he escapes from prison. Her credits include the upcoming Sin City: A Dame to Kill For and The Hangover Part II. She's repped by Gersh, 3 Arts and Morris Yorn.

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Guillory, who in addition to three Resident Evil features also produces and stars in the horror flick The Wicked Within, is cast as Moore, a cool hit-woman who has issues with her own mother. She's repped by UTA, Inspire Entertainment and Sloane Offer.

Alfonso Cuaron (Harry Potter and the Prisoner of Azkaban) and Mark Friedman will pen the Warner Bros. Television pilot and executive produce alongside Bad Robot's J.J. Abrams and Bryan Burk. 

Email: Lesley.Goldberg@thr.com; Twitter: @Snoodit